Motorcycle



FIG. 1 is a front-left side perspective view of a motorcycle showing our new design;

FIG. 2 is a rear-right side perspective view of the motorcycle of FIG. 1;

FIG. 3 is a left-side elevational view of the motorcycle of FIG. 1;

FIG. 4 is a right-side elevational view of the motorcycle of FIG. 1;

FIG. 5 is a front elevational view of the motorcycle of FIG. 1;

FIG. 6 is a rear elevational view of the motorcycle of FIG. 1; and,

FIG. 7 is a top plan view of the motorcycle of FIG. 1.

The bottom view is unornamental and forms no part of the claimed design. 

The ornamental design for a motorcycle, as shown and described. 